Buick TSB #PIP5180
2011 Buick LaCrosse
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
- Summary
- This Preliminary Information communication provides information to the technician about vehicles that have hard start, extended crank, or black smoke from the exhaust when starting. Technician will need to perform fuel quality test, spark test, and a compression test. Technician should also install a vacuum gauge prior to cold start and watch needle for signs of a sticking valve.
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